TD Bank is considering replacing all of its existing photocopiers in its corporate office with new ones. They can replace it with Canon, which will cost $350,000 in total. The Canon machine is more efficient and is expected to use less ink, which will result in an annual pre-tax savings of $165,000. Canon machines is expected to last 4 years before replacement is required. Alternatively, they can replace it with Toshiba, which will cost $425,000 in total. The Toshiba machine will result in an annual pre-tax savings of $138,000. Toshiba machine is expected to last 7 years before replacement is required. The cost of capital is 10% and the tax rate is 30%. There is no need to consider CCA or depreciation for this question. Should TD Bank replace all its existing photocopiers? If so, which brand should it choose? Please show all workings